425840

素因数分解:

$2^4\times 5^1\times {\mathrm{5323}}^1$

素因数の和:5336

約数の個数: 20

約数和(自身を含む): 990264

約数和(自身を除く): 564424

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 5323, 10646, 21292, 26615, 42584, 53230, 85168, 106460, 212920, 425840]

約数ペア:

[(1, 425840), (2, 212920), (4, 106460), (5, 85168), (8, 53230), (10, 42584), (16, 26615), (20, 21292), (40, 10646), (80, 5323)]